#include<iostream>
#include<iomanip>
using namespace std;
float jisuanqi(float a, float b)
{
    float c, d, e, f;
    cout << "Please input two numbers:"<<a<<","<<b<<endl;
    c = a + b;
    d = a - b;
    e = a * b;
    f = a / b;
    cout << a << "+" << b << "=" << setw(5) << c << endl;
    cout << a << "-" << b << "=" << setw(5) << d << endl;
    cout << a << "*" << b << "=" << setw(5) << e << endl;
    cout << a << "/" << b << "=" << setw(5) << fixed << setprecision(2) << f << endl;
    return 0;
}
int main()
{
    float a, b;
    cin >> a >> b;
    jisuanqi(a,b);
    return 0;
}
